There as never any thing by the wit of man so well devised, or so sure established, which in continuance of time hath not been corrupted: As, among other things, it may plainly appear by the Common Prayers in the Church, commonly called Divine Service. The first original and ground whereof if a man would search out by the ancient Fathers, he shall find, that the same was not ordained but of a good purpose, and for a great advancement of godliness. For they so ordered the matter, that all the whole Bible (or the greatest part thereof) should be read over every year; intending thereby, that the Clergy, and especially such as were Ministers in the congregation, should (by often reading, and meditation in God's word) be stirred up to godliness themselves and be more able to exhort others by wholesome Doctrine, and to confute them that were adversaries to the Truth; and further, that the people (by daily hearing of holy Scripture read in the Church) might continually profit more and more in the knowledge of God, and be the more inflamed with the love of his true Religion.

But these many years passed, this godly and decent order of the ancient Fathers hath been so altered, broken, and neglected, by planting in uncertain Stories, and Legends, with multitude of Responds, Verses, vain Repetitions, Commemorations, and Synodals; that commonly when any Book of the Bible was begun, after three of four Chapters were read out, all the rest were unread. And in this sort the Book of Isaiah was begun in Advent, and the Book of Genesis in Septuagesima; but they were only begun, and never read through: after like sort were other Books of holy Scripture used. And moreover, whereas St. Paul would have such language spoken to the people in the Church, as they might understand, and have profit by hearing the same; the service in this Church of England these many years hath been read in Latin to the people, which they understand not; so that they have heard with their ears only, and their heart, spirit and mind, have not been edified thereby. And furthermore, notwithstanding that the ancient Fathers have divided the Psalms into seven portions, whereof every one was called a Nocturn: now of late time a few of them have been daily said, and the rest utterly omitted. Moreover, the number and hardness of the Rules called the Pie, and the manifold changings of the service, was the cause, that to turn the book only was so hard and intricate a matter, that many times there was more business to find out what should be read, than to read it when it was found out.

These inconveniences therefore considered, here is set forth such an order, whereby the same shall be redressed. And for a readiness in this matter, here is drawn out a Calendar for that purpose, which is plain and easy to be understood; wherein (so much as may be) the reading of holy Scripture is so set forth, that all things shall be done in order, without breaking one piece from another. For this cause be cut off Anthems, Responds, Invitatories, and such like things as did break the continual course of the reading of the Scripture.

Yet, because there is no remedy, but that of necessity there must be some Rules; therefore certain Rules are here set forth; which, as they are few in number, so they are plain and easy to be understood. So that here you have an Order for Prayer, and for the reading of the holy Scripture, much agreeable to the mind and purpose of the old Fathers, and a great deal more profitable and commodious, than that which of late was used. It is more profitable, many things, whereof some are untrue, because here are left out some uncertain, some vain and superstitious; and nothing is ordained to be read, but the very pure Word of God, the holy Scriptures, or that which is agreeable to the same; and that in such a language and order as is most easy and plain for the understanding both of the readers and hearers. It is also more commodious, both for the shortness thereof, and for the plainness of the order, and for that the rules be few and easy.
And whereas heretofore there hath been great diversity in saying and singing in Churches within this Realm; some following Salisbury Use, some Hereford Use, and some the Use of Bangor, some of York, some of Lincoln; now from henceforth all the whole Realm shall have but one Use.

And forasmuch as nothing can be so plainly set forth, but doubts may arise in the use and practice of the same; to appease all such diversity (if any arise) and for the resolution of all doubts, concerning the manner how to understand, do, and execute, the things contained in this Book; the parties that so doubt, or diversity take any thing, shall alway resort to the Bishop of the Diocese, who by his discretion shall take order for the quieting and appeasing of the same; so that the same order be not contrary to any thing contained in this Book. And if the Bishop of the Diocese be in doubt, then he may send for the resolution thereof to the Archbishop.

Though it be appointed, that all things shall be read and sung in the Church in the English Tongue, to the end that the congregation may be thereby edified; yet it is not meant, but that when men say Morning and Evening Prayer privately, they may say the same in any language that they themselves do understand.

And all Priests and Deacons are to say daily the Morning and Evening Prayer either privately or openly, not being let by sickness, or some other urgent cause.

And the Curate that ministereth in every Parish-church or Chapel, being at home, and not being otherwise reasonably hindered, shall say the same in the Parish-church or Chapel where he ministereth, and shall cause a bell to be tolled thereunto a convenient time before he begin, that the people may come to hear God's Word, and to pray with him.